- Cranwell Resort and Golf Club, Lenox MA
- Craven County - New Bern
- Craven County Schools
- Crawford County Memorial Hospital
- Crawford Ellenbogen LLC
- CRDA
- Creative Associates International, Inc.
- Creative Computer Services Incorporated
- Creative Management Group
- Creative Memories-The Antioch Company
- Creative Socio Medics
- Creative Solutions Unlimited, Inc.
- Creative Testing Solutions
- Creehan-McHenry Inc.
- Creighton University
- Creighton University, Department of Family Medicine
- Crenshaw Community Hospital
- Crescent PPO
- CREST Health Care
- Crestline Hotels and Resorts
- Crestwood Medical Center
- Crestwyn Behavioral Health Hospital
- Crisp Regional Hospital
- CRNets
- Cronin Photography
- Crosby Marketing
- Cross Ridge Community Hospital
- Cross Road Chrysler
- Crossroads Inn
- Crossroads Research
- Crouse Health
- Crowe Chizek and Company
- Crown Cork and Seal, Inc.
- Crown Plaza Hotel at the Crossings
- Crowne Plaza Charlotte Executive Park
- Crowne Plaza Dayton
- Crowne Plaza Houston, Brook Hollow
- Crowne Plaza Madison
- Crowne Plaza North Phoenix at Metrocenter, Phoenix AZ
- Crowne Plaza Orlando - Universal Blvd
- Crowne Plaza Portland-Lake Oswego
- Crowne Plaza San Jose, San Jose
- Crowne Plaza Springfield - Convention CTR
- Crowne Plaza Washington DC
- Crowne Plaza Wilmington North
- Crowne Plaza, Albuquerque, NM
- Crowne Plaza, Clark, NJ
- Crowne Plaza, Macon, GA
- Crowne Plaza, Seattle
- Crozer Chester Medical Center